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authorPaul Eggert <eggert@cs.ucla.edu>2011-07-24 15:15:47 -0700
committerPaul Eggert <eggert@cs.ucla.edu>2011-07-24 15:15:47 -0700
commit24e0f6b1dc721a919814b226834a4d027e9f90d0 (patch)
treeeb3edef13fd2275ab655eba6b83983b2e5513b0d /m4/extensions.m4
parentf25e39b45a5960f8f2bff6c43f88833bc04540a9 (diff)
Merge from gnulib, using build-aux to remove clutter.
* m4/largefile.m4: New file, so that Emacs does not mess up when accessing files with large inode numbers in MacOS X 10.5 and later. * m4/nocrash.m4: New file, to avoid triggering background debugger and/or create core dumps during 'configure'. * build-aux/move-if-change: Renamed from move-if-change. * build-aux/snippet/arg-nonnull.h: Renamed from arg-nonnull.h. * build-aux/snippet/c++defs.h: Renamed from c++defs.h. * build-aux/snippet/warn-on-use.h: Renamed from warn-on-use.h. * build-aux/snippet/_Noreturn.h: New file, for draft C1X _Noreturn. * .bzrignore: The autogenerated files compile, config.guess, config.sub, depcomp, install-sh, and missing are now in build-aux. * Makefile.in (epaths-force, sync-from-gnulib): move-if-change is now in build-aux. (GNULIB_TOOL_FLAGS): Avoid threadlib; this is now a prerequisite of gnulib's pthread_sigmask module, but Emacs doesn't need it. (mkdir): install-sh is now in build-aux. * config.bat: c++defs.h is now in build-aux/snippets. * configure.in: Specify AC_CONFIG_AUX_DIR with build-aux (the usual parameter). * lib/gnulib.mk, m4/gl-comp.m4: Regenerate. * lib/makefile.w32-in (ARG_NONNULL_H): arg-nonnull.h moved to build-aux/snippet. * lib/pthread_sigmask.c, lib/stdlib.in.h, m4/extensions.m4: * m4/getopt.m4, m4/gnulib-common.m4, m4/pthread_sigmask.m4: Merge from gnuilib. This fixes porting bugs on Cygwin, Irix, and Solaris, enables MacOS extensions, and enables nocrash during 'configure'. * make-dist: Adjust to new build-aux and build-aux/snippit dirs. * admin/notes/copyright: The files compile, config.guess, config.sub, depcomp, install-sh, missing, and move-if-change are now in the new build-aux subdirectory. The files arg-nonnull.h, c++defs.h, and warn-on-use.h are now in build-aux/snippets. New file build-aux/snippets/_Noreturn.h. * leim/Makefile.in (install): install-sh is now in build-aux. * lib-src/Makefile.in ($(DESTDIR)${archlibdir}): install-sh moved to build-aux. * msdos/sedlibmk.inp (CONFIG_CLEAN_VPATH_FILES): Adjust to snippet moves from top level to build-aux/snippet. * src/Makefile.in (gl-stamp): move-if-change is now in build-aux.
Diffstat (limited to 'm4/extensions.m4')
-rw-r--r--m4/extensions.m47
1 files changed, 6 insertions, 1 deletions
diff --git a/m4/extensions.m4 b/m4/extensions.m4
index 1330503f0d..22156e068c 100644
--- a/m4/extensions.m4
+++ b/m4/extensions.m4
@@ -1,4 +1,4 @@
-# serial 9 -*- Autoconf -*-
+# serial 10 -*- Autoconf -*-
# Enable extensions on systems that normally disable them.
# Copyright (C) 2003, 2006-2011 Free Software Foundation, Inc.
@@ -67,6 +67,10 @@ AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
#ifndef _ALL_SOURCE
# undef _ALL_SOURCE
#endif
+/* Enable general extensions on MacOS X. */
+#ifndef _DARWIN_C_SOURCE
+# undef _DARWIN_C_SOURCE
+#endif
/* Enable GNU extensions on systems that have them. */
#ifndef _GNU_SOURCE
# undef _GNU_SOURCE
@@ -95,6 +99,7 @@ AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
test $ac_cv_safe_to_define___extensions__ = yes &&
AC_DEFINE([__EXTENSIONS__])
AC_DEFINE([_ALL_SOURCE])
+ AC_DEFINE([_DARWIN_C_SOURCE])
AC_DEFINE([_GNU_SOURCE])
AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])
AC_DEFINE([_TANDEM_SOURCE])